Rapid Screening of Berseem Clover (Trifolium alexandrinum) Endophytic Bacteria for Rice Plant Seedlings Growth-Promoting Agents

Table 3

Evaluation of various morphological responses of rice (variety Hashemi) in gnotobiotic tube culture for 20 days in Hoagland liquid with nitrogen (8 Mm as (NH₄)₂SO₄) after inoculation with nine endophytes.

Isolate code	Root length (cm)	Root fresh weight (mg)	Shoot dry weight (mg)
Control	2.6 ± 0.03^g	2.50 ± 0.06^e	27.16 ± 0.2^c
E1	2.7 ± 0.07^f	2.55 ± 0.08^e	27.82 ± 0.1^c
E2	2.6 ± 0.08^g	2.58 ± 0.04^e	27.93 ± 0.3^c
E3	3.6 ± 0.08^d	2.74 ± 0.09^c	34.62 ± 0.2^b
E4	3.2 ± 0.05^e	2.78 ± 0.04^c	34.29 ± 0.4^b
E5	2.7 ± 0.04^f	2.63 ± 0.09^d	27.80 ± 0.4^c
E6	3.6 ± 0.06^d	2.82 ± 0.07^c	36.18 ± 0.7^b
E7	3.8 ± 0.07^c	2.91 ± 0.06^b	40.30 ± 0.5^a
E8	3.9 ± 0.05^b	3.74 ± 0.04^a	40.85 ± 0.5^a
E9	4.0 ± 0.04^a	3.76 ± 0.06^a	40.38 ± .06^a

In each column, values followed by the same letter are not significantly different as determined by Tukey’s mean comparison test (𝑃≤0.05; 𝑛=4).